﻿//  Copyright 2021 Google LLC. All Rights Reserved.
//
//  Licensed under the Apache License, Version 2.0 (the "License");
//  you may not use this file except in compliance with the License.
//  You may obtain a copy of the License at
//
//  http://www.apache.org/licenses/LICENSE-2.0
//
//  Unless required by applicable law or agreed to in writing, software
//  distributed under the License is distributed on an "AS IS" BASIS,
//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
//  See the License for the specific language governing permissions and
//  limitations under the License.

using System;
using System.Runtime.InteropServices;

namespace NtCoreLib.Win32.Printing.Interop;

internal static class NativeMethods
{
    [DllImport("Winspool.drv", CharSet = CharSet.Unicode, SetLastError = true)]
    [return: MarshalAs(UnmanagedType.Bool)]
    public static extern bool OpenPrinter(
        string pPrinterName,
        out SafePrinterHandle phPrinter,
        PRINTER_DEFAULTS pDefault
    );

    [DllImport("Winspool.drv", CharSet = CharSet.Unicode, SetLastError = true)]
    [return: MarshalAs(UnmanagedType.Bool)]
    public static extern bool GetPrinter(
      SafePrinterHandle hPrinter,
      int Level,
      SafeBuffer pPrinter,
      int cbBuf,
      out int pcbNeeded
    );

    [DllImport("Winspool.drv", CharSet = CharSet.Unicode, SetLastError = true)]
    [return: MarshalAs(UnmanagedType.Bool)]
    public static extern bool ClosePrinter(
        IntPtr hPrinter
    );

    [DllImport("Winspool.drv", CharSet = CharSet.Unicode, SetLastError = true)]
    [return: MarshalAs(UnmanagedType.Bool)]
    public static extern bool EnumPrinters(
      int Flags,
      string Name,
      int Level,
      SafeBuffer pPrinterEnum,
      int cbBuf,
      out int pcbNeeded,
      out int pcReturned
    );
}
